KnitWit: Rantings of a Rabid Knitter

Amendment to last weeks show. If you are making a non-standard sweater the 3/2 rule of thumb wont work.

Instead you need to calculate the sleeve and body separately.

Body area is easy. It is the total circumference times the length of the sweater.
BA = C*L

where

• C = total circumference of the sweater at the widest point
• L = length of the sweater

The sleeves can be thought of as two triangles. The area of both sleeve then is the width of the sleeve at the wrist plus the width at the widest points of the sleeve times the length of the sleeve.

SA = (w1 + w2) * S

where

• w1 = width of sleeve at the narrowest point
• w2 = width of sleeve at widest point
• S = length of the sleeve

Total sweater area is the sum of the body area and the sleeve area.

TA = BA + SA
I hope this makes sense.